{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
\toprule
            &\multicolumn{2}{c}{\specialcell{Contemporaneous\\Effect (t)}}&\multicolumn{2}{c}{\specialcell{One Year\\Later (t+1)}}&\multicolumn{2}{c}{\specialcell{Previous Year\\(Placebo) (t-1)}}\\\cmidrule(lr){2-3}\cmidrule(lr){4-5}\cmidrule(lr){6-7}
            &\multicolumn{1}{c}{\specialcell{Number\\(1)}}&\multicolumn{1}{c}{\specialcell{IHS\\(2)}}&\multicolumn{1}{c}{\specialcell{Number\\(3)}}&\multicolumn{1}{c}{\specialcell{IHS\\(4)}}&\multicolumn{1}{c}{\specialcell{Number\\(5)}}&\multicolumn{1}{c}{\specialcell{IHS\\(6)}}\\
\midrule
Neighbor $\times$ Different Party & -.037 & -.013 & .07 & .023 & -.025 & .016 \\ (proximity effect on bipartisanship) & [.65] & [.6] & [.5] & [.52] & [.76] & [.59] \\ & \{.56\} & \{.56\} & \{.41\} & \{.39\} & \{.75\} & \{.54\} \\ & <.95> & <.95> & <.95> & <.95> & & \\ \\[-5pt] Neighbor $\times$ Same Party & -.24 & -.022 & -.37 & -.093  & -.43 & -.055 \\  & [.22] & [.52] & [.1] & [.011]** & [.1] & [.22] \\ & \{.21\} & \{.55\} & \{.14\} & \{.065\}* & \{.11\} & \{.3\} \\ & <.79> & <.95> & <.54> & <.097>* & & \\ \\[-5pt] Same = Different & [.34] & [.83] & [.088]* & [.019]** & [.15] & [.23] \\ & \{.32\} & \{.84\} & \{.12\} & \{.067\}* & \{.14\} & \{.25\} \\ \\[-5pt] \hline Observations & 35314 & 35314 & 23265 & 23265 & 23472 & 23472 \\ Session $\times$ Party Pair $\times$ Strata FE & Y & Y & Y & Y & Y & Y \\ Outcome Mean & 3.3 & 1.3 & 3.4 & 1.3 & 3.2 & 1.2 \\ Outcome S.d. & 4.8 & 1.1 & 5 & 1.2 & 4.8 & 1.1 \\ \toprule \multicolumn{7}{p{16.9cm}}{\footnotesize \textit{Notes:} Number is the total number of co-sponsorship links between the two MPs in a pair in a given session. IHS is the inverse hyperbolic sine transformation of Number. Neighbor is a dummy variable equal to one if the MPs in the pair are randomly assigned to sit next to each other during that session. Same Party is equal to one if both MPs in the pair are in the same party for that session. Dyadic-robust p-values are in square brackets. Randomization inference p-values (1000 draws) are in curly brackets. Sharpened q-values (Anderson 2008) for non-placebo tests are in <>. Special sessions and a short session (2017) are excluded. For lead and lag specifications, sessions are also dropped where lead/lag would be a special/short session or a session in a different parliamentary term. Strata FE are dummy variables for whether both MPs in a pair were pre-assigned seats, one MP in a pair was pre-assigned a seat, or neither MP in a pair was pre-assigned a seat. *** p<0.01, ** p<0.05, * p<0.1.} \\ \end{tabular} }
